| ( | 10020 | + | x | ) | ÷ | x | = | 687 625 |
| Multiply both sides of the equation by: | x |
| ( | 10020 | + | x | ) | = | 687 625 | x |
| 10020 | + | x | = | 687 625 | x |
| x | − | 687 625 | x | = | - | 10020 |
| - | 62 625 | x | = | - | 10020 |
| 10020 | = | 62 625 | x |
62 625 | x | = | 10020 |
| x | = | 10020 | ÷ | 62 625 |
| = | 10020 | × | 625 62 |
| = | 5010 | × | 625 31 |
| x | = | 3131250 31 |
| x | = | 101008.064516 |